多缸内燃机缸套_活塞系统摩擦学与动力学耦合问题的研究.doc

王义亮 1, 2 谢友柏 2 ( 11太原理工大学机械工程学院 大原 030024; 21西安交通大学机械工程学院 西安 710049 ) 摘要 : 从理论上对多缸内燃机缸套 2活塞系统摩擦学与动力学的耦合问题进行了研究 。在纠正了到目前为止被广泛 引用的活塞二阶运动方程中的错误的基础上 , 给出了多缸内燃机缸套 2活塞系统摩擦学与动力学耦合问题的数学模型 。 在该模型中 , 首次在计算活塞二阶运动时考虑了连杆惯性力的影响 。并对影响缸套 2活塞系统摩擦学行为的主要动力学 因素做了深入的论述 。最后讨论了缸套 2活塞系统摩擦学与动力学之间的耦合作用对活塞侧推力 、作用在连杆和主轴承 上的力的影响进行了讨论 , 并据此对它们的传统计算模型作了修正 。 关键词 : 多缸内燃机 ; 缸套 2活塞系统 ; 动力学 ; 摩擦学 ; 耦合 中图分类号 : TK421; TK423133; TB 532 文献标识码 : A 文章编号 : 0254 - 0150 ( 2005 ) 2 - 001 - 5 Resea rch on the Coupl ing Problem of the Tr ibo log ica l and D ynam ic Behav iors in the P iston 2l iner Sy stem s of M ult i2cy linder In terna l Com bust ion Eng ines W a n g Yilia n g1, 2 X ie Yo u b a i2 ( 1. Schoo l of M echan ica l Enginee ring, Ta iyuan U n ive rsity of Techno logy, Ta iyuan 030024 , Ch ina; 2. Schoo l of M echan ica l Enginee ring, X i’an J iao tong U n ive rsity, X i’an 710049 , Ch ina) A b stra c t: The coup ling p rob lem be tween the dynam ic behavio rs and the tribo logica l behavio rs of the p iston2line r sys2 tem s in m u lti2cylinde r in ternal com bu stion engines wa s stud ied. B ased on the co rrection of som e erro rs in the equa tion of p iston seconda ry mo tion, wh ich have been emp loyed by m any au tho rs fo r severa l yea rs, a de ta iled m a them a tical model fo r the coup ling p rob lem between the dynam ica l and tribo logica l behavio rs in the p iston2liner system s of m u lti2cylinde r in te rna l com bu stion engine wa s p re sen ted. In the model, the ine rtia l fo rce of the connecting2rod wa s invo lved in the calcu la tion of the p iston seconda ry mo tion fo r the first tim e, the p rim ary dynam ical fac to rs tha t have imp ac ts on the tribo logica l behavio rs in the p iston2liner system s were d iscu ssed th rough ly1and the effects of the coup ling p rocess on the fo rces such a s the p iston th ru st fo rce, the connecting2rod fo rce and the m ain bea ring fo rce were stud ied, and the trad itional m a them a tical mod